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Đề cương Toán 11 năm học 2017 - 2018 trường THPT Hùng Vương - Thái Bình - Có đáp án

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4)<br />

5)<br />

lim<br />

<br />

x<br />

<br />

4<br />

lim<br />

x0<br />

3<br />

tgx<br />

ĐS 4 / 3<br />

x<br />

sin 5x<br />

ĐS /<br />

x<br />

6)<br />

sin 5 x.sin 3 x.sin<br />

x<br />

lim<br />

x0<br />

3<br />

45x<br />

7)<br />

1<br />

cos 2x<br />

lim ĐS<br />

x0<br />

x sin x<br />

8)<br />

1<br />

cos 4x<br />

lim ĐS<br />

x0<br />

2<br />

2<br />

x<br />

9)<br />

sin 2x<br />

lim<br />

x0<br />

x <strong>11</strong><br />

ĐS:4<br />

1<br />

cos3x<br />

19) lim<br />

x0<br />

1 cos5 x<br />

ĐS /<br />

2<br />

1<br />

cos x<br />

20) lim ĐS<br />

x0<br />

x sin x<br />

sin 2x<br />

sin x<br />

21) lim<br />

x0<br />

3sin x<br />

ĐS<br />

ĐS /<br />

sin x<br />

13) lim ĐS /<br />

x0<br />

tan 2 x<br />

1<br />

cos x.cos 2 x.cos3x<br />

14) lim<br />

ĐS<br />

x0<br />

1<br />

cos x<br />

2 x<br />

sin<br />

15) lim 3 ĐS /<br />

x0<br />

2<br />

x<br />

sin x.cos<br />

x sin x<br />

16) lim<br />

ĐS<br />

x0<br />

x<br />

sin 2<br />

<strong>11</strong>sin 3x<br />

17) lim<br />

x0<br />

1 cos x<br />

1<br />

cos x<br />

18) lim<br />

x0<br />

1 cos x<br />

6<br />

ĐS<br />

ĐS 3 2<br />

2sin x 1<br />

40) lim ĐS -1/2<br />

4cos<br />

2<br />

x<br />

x 3<br />

sin x<br />

cos x<br />

41) lim ĐS <br />

<br />

x<br />

1 tgx<br />

4<br />

2<br />

2<br />

sin 2x<br />

tan 3x<br />

22) lim<br />

ĐS<br />

x0<br />

x<br />

1sin xcos 2x<br />

23) lim<br />

ĐS -1<br />

x0<br />

sin x<br />

tan x<br />

sin x<br />

24) lim<br />

ĐS /<br />

x0<br />

3<br />

x<br />

cos 4x cos3 x.cos5x<br />

25) lim<br />

ĐS<br />

x0<br />

2<br />

x<br />

<br />

cos( cos x)<br />

26) lim 2<br />

ĐS Đ<br />

x0 2 x<br />

sin 2<br />

ụ<br />

1<br />

tgx<br />

42) lim ĐS -1<br />

<br />

x<br />

1 cot gx<br />

4<br />

<br />

43) lim( xsin ) ĐS <br />

x<br />

x<br />

3<br />

x 8<br />

44) lim ĐS<br />

x2<br />

tan( x 2)<br />

45) lim 1 3 <br />

x<br />

ĐS<br />

x0<br />

sin x sin 3 x<br />

1sin 2xcos 2x<br />

22) lim ĐS -1<br />

x0<br />

1 sin 2 x<br />

cos 2 x<br />

chéo<br />

46)<br />

tan( ).tan( ) tan<br />

L lim<br />

x0<br />

2<br />

x<br />

2<br />

a x a x a<br />

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